539543 has 8 divisors (see below), whose sum is σ = 577200. Its totient is φ = 502848.

The previous prime is 539533. The next prime is 539573. The reversal of 539543 is 345935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 539543 - 2⁶ = 539479 is a prime.

It is a super-2 number, since 2×539543² = 582213297698, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5³ + 3³ + 5⁵ + 9³ + 4⁶ + 3¹² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193 + ... + 1581.

It is an arithmetic number, because the mean of its divisors is an integer number (72150).

2⁵³⁹⁵⁴³ is an apocalyptic number.

539543 is a deficient number, since it is larger than the sum of its proper divisors (37657).

539543 is a wasteful number, since it uses less digits than its factorization.

539543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481.

The product of its digits is 8100, while the sum is 29.

The square root of 539543 is about 734.5359079038. The cubic root of 539543 is about 81.4095499987.

The spelling of 539543 in words is "five hundred thirty-nine thousand, five hundred forty-three".